Just tried to pull up some market history, didn't change any variables from the default when you first arrive at the page.

It gives me the message:
"You did not search over a proper time period."

In game time:
Current Time: 02:38:06 Apr 7, 2013

Default Search Parameters:
Time Period (Start) = April 4, 02:00
Time Period (End) = April 7, 02:00
Good (select one) = [happening on all goods]
Interval = 4 Hours


If I put the (End) time back 1 hour to April 7, 01:00 it does work. But this shouldn't happen on a default search right?

Daylight savings (adjustment of 1 hour) is occurring in many countries and regions today.